如何使用AsyncHttpClient和scala实现简单重试

import com.ning.http.client.AsyncHttpClient
import com.ning.http.client.AsyncHttpClientConfig

object RetryExample {
  val maxRetries = 3
  val httpClient = new AsyncHttpClient(new AsyncHttpClientConfig.Builder().build())

  def main(args: Array[String]): Unit = {
    val url = "https://example.com/api"
    val request = httpClient.prepareGet(url).build()

    sendRequest(request, maxRetries)
  }

  def sendRequest(request: Request, retries: Int): Unit = {
    httpClient.executeRequest(request, new AsyncCompletionHandler[Response]() {
      override def onCompleted(response: Response): Response = {
        // 处理成功响应的逻辑
        response
      }

      override def onThrowable(t: Throwable): Unit = {
        if (retries > 0) {
          // 处理失败响应的逻辑
          sendRequest(request, retries - 1)
        } else {
          // 达到最大重试次数，放弃重试
          // 处理重试失败的逻辑
        }
      }
    })
  }
}